Thomas k



`(No Model.)

T. K. SHE-LEON a Nif. N. LYNN. PINISHING TOOL E'OR'GLJSS BOTTLES. No.500,960. l Patented July 4, 1893.

UNITED STATES PATENT OFFICE.

THOMAS K. SHELDON, OF MARION, AND MIRABEAUV N. LYNN, OF INDIANAPOLIS,INDIANA.

FINISHING-TOOL FOR GLSS BOTTLES.

SPECIFICATION forming part of Letters Patent No. 500,960, dated July 4,1893.

Application filed J' une 13, 1892.

To @ZZ whom. it may concern,.-

Be it known that we, THOMAS K. SHELDoN, of Marion, county of Grant, andMIRABEAU N. LYNN, of Indianapolis, county of Marion, State of Indiana,have invented certain new and useful Improvements in Finishing-Tools forGlass Bottles; and we do hereby declare that the following is afull,clear, and exact description thereof, reference being had to theaccompanying drawings, in which like iigures refer to like parts.

Our invention relates to a new and useful improvement in tools forfinishing glass bottles, and it consists mainly in the construction oftools for finishing the ends of the bottles in such a manner as toprovide an extension on the mouth of the same, and at the same time toform the glass of the extension at the point of connection with thebottle of less thickness than the rest, so that the ex-4 tension may bereadily broken off, butit can also be used to form the neck and mouth ofany bottle, where it is desired to make the inside of the neckcorrugated, or concave, or

of any other irregular form.

In the drawings, Figure 1 is an elevation of our finishing tool, showingthe spring jaws open. Fig. 2 is a similar view, partly broken away,showing the spring jaws closed, and in the act of finishing the bottle,such bottle shown in section. Fig. 3 is an edge view of the finishingtool.

In detail, 1 represents a pair of jaws connected at their upper end byaspring 2, and 15 are nishing dies secured to their lower ends to finishthe exterior of the bottle, 3 being a rib on the face of each jawfor thepurpose of forming the glass in the bottle thinner Y at this point, 4being other ribs or projections across the face of the finishing diesfor otherwise shaping the outside of the bottle.

5 is a screw threaded rod working loosely through an opening in thespring connecting the two jaws 1, Yand is adjustable and retainediniposition by means of the nuts 6, 8 being a flat extension of the rod5, and has formed on its lower end a tapering plug or spindle which isin line with and between the dies 15 to form the corkage of the bottle.

9 are spring arms which are riveted or Serial No. 436,505. (No model.)

welded to the central rod 5, and carry on their lower ends the bulbousheads or interior dies 10, whose inner sides are flat, and which areadapted to tit up against the central arm 8 just above and in contactwith the tapering spindle or plug 7, 11 being an enlargement formedintegral with and just above these heads or interior dies, and whichwith the corresponding parts of the jaws form the end of the bottleextension, and also serve as stops to the exterior finishing dies whenthey are closed.

12 are screw threaded pins, one connected to each of the spring arms 9,and passing A loosely through the central piece 8, the opposite springarm 9, and through o ne of the spring jaws 1, a nut working on the pinon the inside of such jaw for adjusting the movement of the spring armswith their heads or dies,for by screwing the nuts outward when thespring jaws are closed, as shown in Fig. 2, the heads or dies will beforced farther out, thus making the extension and the end of the bottleslightly larger, thereby enabling many dierent sized bottles to befinished with one tool. y

The manner of operating our device is as follows: The bottles, whichhave been completed, and whose necks, mouths and extensions it isdesired to finish, are heated to such an extent that the necks becomesoft and plastic to a degree as to be readily formed or molded in anydesired shape.- The spindle 7 of the finishing tool is then inserted inthe mouth of the bottle, and the spring jaws 1 gradually closed untilthe finishing dies come in contact with the glass. At the same time thebottle is turned, the dies operating on the outside of the bottle neck,and gradually bringing it in the shape of the dies.I At the same timethe dies are being brought together on the outside of the bottle. Theinterior die or divided head 10 on the inside, `which is of lessdiameter than the spindle, is gradually spread as the spring jaws areclosed, until the finishing dies come in contact'with the enlargements11, when the parts of the bottle neck will have all beensworked down tothe desired size, as shown in Fig..2, and

IOO

the head 10 at that point, the glass will be thinnest and readilybreakable, as shown. After the end of the bottle has been finished offas mentioned,by releasing the pressure of the spring jaws l, the dividedhead will close into place, and the head being smaller than the spindlemay be drawn out of the bottle, which is done and cold enough to retainits shape and may then be removed, and another bottle operated on.

Ve do not desire to limit the heads or interior dies attached to theends of the divided spring arms which are attached to the central arm,to a bulbous or any other particular shape, but the same may becorrugated,spin die-shaped, or made in any shape so as to make theinside of the neck or extension thereto of any desired shape.

What we claim as our invention, and desire to secure by Letters Patent,is the following:

1. In a tool for iinishing bottles, a spindle carried on a central arm,and interior dies carried on spring arms and lying immediately abovesuch spindle, substantially as shown and described.

2. In a tool for finishing bottles, a spindle carried on a centralarm,interiordics carried on spring arms and lying immediately above suchspindle, with their backs against such central arm, substantially asshown and described.

3. In a tool for finishing bottles, a spindle carried on a central arm,and interior dies carried on spring arms and lying immediately abovesuch spindle with their backs against such central arm, and suitablecollars immediately above and integral with such interior dies,substantially as shown and described.

4. In a tool for Iinishing glass bottles, a pair of spring jaws carryingon their lower ends exterior finishing dies, a central arm carrying aspindle, interior dies carried on spring arms, and lying in recessesabove the spindle, and adapted to be sprung out upon the bringingtogether of the spring jaws, whereby such heads will extend out beyondthe face of the spindle proper, substantially as shown and described.

5. In a tool for finishing glass bottles, apair of spring jaws carryingon their lower ends exterior linishing dies, a central adjustable armcarrying on its lower end a spindle be tween and in line with such dies,spring arms carrying on their lower ends interior dies having a collarabove the same, such interior dies adapted to tit against the centralarm above the spindle, and screw pins with nuts working thereonconnected to each of the spring arms, and working loosely throughopenings within the spring jaws, whereby upon closing such dies theheads will be forced outward, and upon releasing the same they will bedrawn inward, substantially as shown and described.

6. In a tool for iinishing glass bottles, a pair of jaws connectedtogether by a spring, eXterior finishing dies secured to the lower endsof such jaws, an adjustable rod working loosely through such spring andretained in position by nuts, a spindle or plug mounted on the lower endof an extension of such rod and in line with and between the finishingdies, interior dies formed on the ends of spring arms secured to thecentral rod and adapted to fit in the recess above such spindle, screwpins carrying nuts thereon each working loosely through a spring jaw,and through the central arm and one of the spring arms of the spindleand secured to the opposite spring arm, the heads of the taperingspindle adapted to be forced outward beyond the line of such spindle asthe spring jaws are brought together, and collars above such interiordies adapted to stop the movement of such jaws, substantially as shownand described.

In witness whereof we have hereunto set our hands this 7th day of May,1892.

THOMAS K. Sl-IELDON. MIRABEAU N. LYNN.

Witnesses:

H. D. NEALY, E. B. GRIFFITH.

